package demo;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.util.Random;

import com.apts.jfinalbase.BaseController;

public class codeController extends BaseController{
	private static final long serialVersionUID = 1L;
	private static final String CONTENT_TYPE = "text/html; charset=gb2312";   
    //设置字母的大小,大小   
    private Font mFont = new Font("Times New Roman", Font.PLAIN, 17);

    Color getRandColor(int fc,int bc)   
    {   
    	Random random = new Random();   
    	if(fc>255) fc=255;   
    	if(bc>255) bc=255;   
    	int r=fc+random.nextInt(bc-fc);   
    	int g=fc+random.nextInt(bc-fc);   
    	int b=fc+random.nextInt(bc-fc);   
    	return new Color(r,g,b);   
    }   
	public void codeCreate(){
		int width=100, height=18;   
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);   
           
        Graphics g = image.getGraphics();   
        Random random = new Random();   
        g.setColor(getRandColor(200,250));   
        g.fillRect(1, 1, width-1, height-1);   
        g.setColor(new Color(102,102,102));   
        g.drawRect(0, 0, width-1, height-1);   
        g.setFont(mFont);   
  
        g.setColor(getRandColor(160,200));   
  
        //画随机线   
        for (int i=0;i<155;i++)   
        {
            int x = random.nextInt(width - 1);   
            int y = random.nextInt(height - 1);   
            int xl = random.nextInt(6) + 1;   
            int yl = random.nextInt(12) + 1;   
            g.drawLine(x,y,x + xl,y + yl);   
        }   
  
        //从另一方向画随机线   
        for (int i = 0;i < 70;i++)   
        {   
            int x = random.nextInt(width - 1);   
            int y = random.nextInt(height - 1);   
            int xl = random.nextInt(12) + 1;   
            int yl = random.nextInt(6) + 1;   
            g.drawLine(x,y,x - xl,y - yl);   
        }   
  
        //生成随机数,并将随机数字转换为字母   
        String sRand="";   
        for (int i=0;i<6;i++)   
        {   
            int itmp = random.nextInt(26) + 65;   
            char ctmp = (char)itmp;   
            sRand += String.valueOf(ctmp);   
            g.setColor(new Color(20+random.nextInt(110),20+random.nextInt(110),20+random.nextInt(110)));   
            g.drawString(String.valueOf(ctmp),15*i+10,16);   
        }    
		
	}
}
